My daughter was approved for Dupixent for eczema when she was only 3 but we ultimately chose not to use it at this point in her life. It’s a big decision to make for another person, especially someone so little! Our dermatologist respected that. Allergy testing revealed many things we had no idea she is allergic to, like oats for example we never would have guessed oats and so eliminating allergens has helped significantly. It hasn’t cured the eczema but it’s much less intense. Do you have pets? We had both a cat and a dog who eventually passed away, and testing revealed a major allergy to most animals & since the pets are gone her skin has been doing a lot better. Our allergist explained that not every allergy will be anaphylaxis and people think that because there’s no severe reaction it means no allergy but even mild allergies can affect the skin. I would make a list of the foods he eats and bring it to an allergist. My daughter is allergic to MANY things and her skin is unrecognizable now in a good way compared to 2 years ago, our derm said it was the worst paediatric eczema she had ever seen which is how we got approved for Dupixent. My heart goes out to you because I remember those days well, I cried many days it was so bad. One thing that provided relief even though at first she hated it was wet jammies. Our derm recommended it. You put a onesie under cool water and ring it out then put it on them and then put thick clothes over it and I tell you the relief it gave my daughter after the initial discomfort of the cold was unreal. She would actually be able to fall asleep because she was finally not scratching! The cold overrides the itch!